Time-controlled egg-boiler.



PATBNTED JULY 2,'1907."

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HERMANN SECKENDORFF, OF HANOVER, GERMANY.

TIME-CONTROLLED EGG-BOILER.

Specification of Letters Patent.

Patented July 2, 1907.

Application led July 28,1906. Serial No. 328,268.

To all whom it may concern:

Be it known that I, HERMANN SECKENDORFF, aI subject of the GermanEmperor, residing at Hanover, in Germany, have invented a certain newand useful Time-Controlled Egg-Boiler, of which the following is aspecification.

This invention has reference to time controlled vessels to be used forcooking purposes and particularly designed or use as automaticegg-boilers.

So-called egg-boilers are known, in which a springactuated supportforthe egg or eggs is adapted to be retained under water for apredetermined length of time by means of a locking device controlled byclockwork. In these known egg-boilers the clockwork is arranged at theside or top of the cooking vessel, so that it is exposed and liable tobe damaged. Moreover the eggsupport is suddenly propelled upwards by thespring when unlocked, so that the eggs are liable to be damaged.`

The purpose of the present invention is to obviate these disadvantagesand to provide a time-controlled vessel more especially for use as anegg-boiler which is practical and convenient for household use.

The invention is illustrated inthe annexed drawing, in which Figure l isa side-view partly broken away, Fig. 2 a plan-view with a portion oi thecover broken away, and Fig. 3 a detail-view of the locking-device. f

The cooking-vessel a is constructed oi any suitable material andcontains an inner movable receptacle b which may be constructed, ofperforated metal which fits closely against the walls ofthe vessel a andis acted on by a spring d tending to press it upwards. Plates or trays cprovided with holes for the reception of eggs are fixed in thereceptacle b. 'lhe vessel a is provided with a hinged lid e containing achamber within which is arranged clockwork adapted to operate a hand orpointer f. The chamber containing the clockwork is steamproof. Thepointer f also serves for winding up the clock-work, and a pin g isconnected to the pointer in such a manner that it is displaced when thepointer is moved. The clock-work is of the simplest possibleconstruction, the driving-wheel being large and the pinion andescapement-wheel small. An internal or external strip h of aluminium orthe like bent to conform to the circumference of the lid covers a slot.l in which moves a roller lc mounted on the pin g to reduce friction. l

For cooking eggs the vessel a is lled with water to a l l l i l i lcertain level and this water is raised to boiling-point, whereupon thereceptacle b containing the eggs is inserted into the vessel, the springd being compressed and the lid e closed. The pointer f is then adjustedfor a certain period of cooking, this beingiefected with the aid of ascale marked on the lid, and the pin g with the roller 7c thereon iscaused to engage a curved plate 'i in such a manner lthat the lid isheld down. The expansion of the clock-spring causes the pointer f tomove v toward its position of rest, so that at the end of the periodforwhich the device was adjusted the pin g with the roller c attachedthereto clears the curved plate i and allows the lid to be raised by thespring-actuated receptacle b. The automatic brake-action due to thefriction between the lid and the receptacle b causes the latter toascend slowly from the water with the eggs. The hinge of the lid may,however, be provided in addition with a brake-spring Z to prevent upwardmovement and to secure the gradual ascent ofthe eggs,- more particularlyin the case of an apparatus oi large size.

The apparatus described can also be used for other purposes than forcooking eggs, 'for example in the carrying out of chemical processes andthe like.

What l claim as my invention and desire to secure by Letters Patent oithe United States is l. A time controlled vessel adapted for use as aneggboiler comprising in combination a cooking vessel, a lid hingedthereto, a spring-actuated egg-receptacle movable frictionally in avertical direction in said cooking vessel, clock-work located in asteam-proof chamber Within the lid, and a lock for said lid operated bysaid clockwork, said lid acting through its own weight and that of theclock-work and by the friction of its inner surface with theegg-receptacle as a brake on the upward movement of said receptacle.

2. A time controlled vessel adapted for use as an eggboiler comprisingin combination a cooking vessel, a lid hinged thereto, a spring-actuatedreceptacle movable frictionally in a vertical direction in said cookingvessel, clock-work located in a steam-proof chamber within the lid, anda lock for said lid operated by said clock-work, said lid acting throughits own Weight and that of the clock-work and by the friction of itsinner surface with the egg-receptacle as a brake on the upward movementof said receptacle and said lock comprising a. movable pin and ananti-friction roller thereon bearing under a curved plate on the cookingvessel. I

In Witness whereof I have signed this specication in the presenceof twowitnesses.

` HERMANN SECKENDORFF. Witnesses HENRY T. FULLER, ROBERT GRIMSHAW.

